Machine Learning Engineer

We're seeking a highly skilled Machine Learning Engineer (RAG Specialist) to join our AI hyperscaler client on a 6–12 month contract. You will play a critical role in designing, building, and optimizing Retrieval-Augmented Generation (RAG) systems to support cutting-edge large language model (LLM) solutions at scale. This position offers a unique opportunity to work with advanced infrastructure and collaborate with world-class AI teams on next-generation machine learning systems. Key responsibilities • Design, implement, and optimize RAG pipelines for large-scale AI/ML deployments. • Develop and maintain data ingestion, retrieval, and indexing workflows across distributed environments. • Work with vector databases, embeddings, and information retrieval systems to ensure high performance and low latency. • Collaborate with researchers, ML engineers, and data scientists to integrate RAG into production-grade LLM applications. • Contribute to scaling and deployment strategies across a hyperscaler environment (cloud-native). • Monitor, debug, and fine-tune ML pipelines for robustness and efficiency. • Produce high-quality documentation and knowledge transfer for internal stakeholders. Required skills and experience • Proven expertise in RAG (Retrieval-Augmented Generation) techniques and real-world implementation. • Strong experience with LLMs, transformers, and embeddings. • Hands-on experience with vector databases (e.g., FAISS, Pinecone, Weaviate, Milvus, Vespa). • Deep knowledge of Python and modern ML/AI frameworks (e.g., PyTorch, Hugging Face, LangChain, LlamaIndex). • Strong background in distributed systems, data pipelines, and cloud-native environments (Azure, AWS, or GCP). • Previous work with AI hyperscalers or large-scale ML infrastructure is highly desirable. • Excellent problem-solving skills, with the ability to optimize systems for performance and scalability. Contract details • Duration: 6–12 months (initial term with potential extension) • Location: Hybrid – London-based (1 day onsite per week) • Rate: Up to £1100 per day (Inside IR35) • Start Date: Immediate / ASAP Apply now to join our innovative client and contribute to a fast-paced, dynamic environment. Your consultant Cam Dalziel is a recruitment specialist in assembling teams in data, AI, design, and technology across Europe. He engages with top talent and is committed to providing a high-quality service that delivers results.